/* -*- c++ -*- */
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/* -*- c++ -*- */
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/* $Id: fx2utils.c 395 2011-07-17 22:02:55Z mueller $ */
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/* $Id: fx2utils.c 395 2011-07-17 22:02:55Z mueller $ */
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/*-----------------------------------------------------------------------------
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/*-----------------------------------------------------------------------------
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* FX2 specific subroutines
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* FX2 specific subroutines
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*-----------------------------------------------------------------------------
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*-----------------------------------------------------------------------------
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* Code taken from USRP2 firmware (GNU Radio Project), version 3.0.2,
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* Code taken from USRP2 firmware (GNU Radio Project), version 3.0.2,
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* Copyright 2003 Free Software Foundation, Inc.
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* Copyright 2003 Free Software Foundation, Inc.
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*-----------------------------------------------------------------------------
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*-----------------------------------------------------------------------------
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* This code is part of usbjtag. usbjtag is free software; you can redistribute
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* This code is part of usbjtag. usbjtag is free software; you can redistribute
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* it and/or modify it under the terms of the GNU General Public License as
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* it and/or modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of the License,
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* published by the Free Software Foundation; either version 2 of the License,
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* or (at your option) any later version. usbjtag is distributed in the hope
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* or (at your option) any later version. usbjtag is distributed in the hope
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* that it will be useful, but WITHOUT ANY WARRANTY; without even the implied
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* that it will be useful, but WITHOUT ANY WARRANTY; without even the implied
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* warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details. You should have received a
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* GNU General Public License for more details. You should have received a
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* copy of the GNU General Public License along with this program in the file
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* copy of the GNU General Public License along with this program in the file
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* COPYING; if not, write to the Free Software Foundation, Inc., 51 Franklin
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* COPYING; if not, write to the Free Software Foundation, Inc., 51 Franklin
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* St, Fifth Floor, Boston, MA 02110-1301 USA
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* St, Fifth Floor, Boston, MA 02110-1301 USA
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*-----------------------------------------------------------------------------
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*-----------------------------------------------------------------------------
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*/
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*/
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#include "fx2utils.h"
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#include "fx2utils.h"
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#include "fx2regs.h"
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#include "fx2regs.h"
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#include "delay.h"
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#include "delay.h"
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void
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void
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fx2_stall_ep0 (void)
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fx2_stall_ep0 (void)
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{
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{
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EP0CS |= bmEPSTALL;
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EP0CS |= bmEPSTALL;
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}
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}
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void
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void
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fx2_reset_data_toggle (unsigned char ep)
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fx2_reset_data_toggle (unsigned char ep)
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{
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{
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TOGCTL = ((ep & 0x80) >> 3 | (ep & 0x0f));
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TOGCTL = ((ep & 0x80) >> 3 | (ep & 0x0f));
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TOGCTL |= bmRESETTOGGLE;
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TOGCTL |= bmRESETTOGGLE;
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}
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}
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void
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void
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fx2_renumerate (void)
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fx2_renumerate (void)
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{
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{
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USBCS |= bmDISCON | bmRENUM;
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USBCS |= bmDISCON | bmRENUM;
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// mdelay (1500); // FIXME why 1.5 seconds?
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// mdelay (1500); // FIXME why 1.5 seconds?
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mdelay (250); // FIXME why 1.5 seconds?
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mdelay (250); // FIXME why 1.5 seconds?
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USBIRQ = 0xff; // clear any pending USB irqs...
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USBIRQ = 0xff; // clear any pending USB irqs...
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EPIRQ = 0xff; // they're from before the renumeration
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EPIRQ = 0xff; // they're from before the renumeration
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EXIF &= ~bmEXIF_USBINT;
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EXIF &= ~bmEXIF_USBINT;
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USBCS &= ~bmDISCON; // reconnect USB
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USBCS &= ~bmDISCON; // reconnect USB
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}
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}
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